public static Task<decimal> SumAsync(
	this IMongoQueryable<decimal> source,
	CancellationToken cancellationToken = null
)

<ExtensionAttribute>
Public Shared Function SumAsync ( 
	source As IMongoQueryable(Of Decimal),
	Optional cancellationToken As CancellationToken = Nothing
) As Task(Of Decimal)

[<ExtensionAttribute>]
static member SumAsync : 
        source : IMongoQueryable<decimal> * 
        ?cancellationToken : CancellationToken 
(* Defaults:
        let _cancellationToken = defaultArg cancellationToken null
*)
-> Task<decimal>